package collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

/*
* 增强型for循环，也称为新循环
* for(元素类型 变量名 ： 集合或数组){
*   循环体
* }
* */
public class NewForDemo {
    public static void main(String[] args) {
        String[] array = {"one","two","three","four","five"};
        for (int i = 0; i < array.length; i++) {
            System.out.println(array[i]);
        }
        for(String str : array) {
            System.out.println(str);
        }

        Collection c = new ArrayList();
        c.add("one");
        c.add("two");
        c.add("three");
        c.add("four");
        c.add("five");
        Iterator in = c.iterator();//迭代器
        while (in.hasNext()){
            String str =(String) in.next();
            System.out.println(str);
        }
        for(Object obj : c){
            String str = (String)obj;
            System.out.println(str);
        }

    }
}
